Mastodawn

I just completed my first mainline driver!

My goal was to enable night light on OnePlus 6 using #phosh on #postmarketos.
It was a missing DRM GAMMA_LUT support in the Qualcomm Display Engine (DPU) driver.
I used the downstream kernel as a reference and found the LUT format by trial and error on the phone.

It was a difficult but very rewarding experience.
I pushed the code here https://gitlab.com/sdm845-mainline/linux/-/merge_requests/137#note_2807562800

#linuxmobile #mainline

Show thread

Val Packett 🧉

@fizzo THIS is what QUALCOMM has been HIDING from us!!!! xD

(it does already support the simpler matrix thing that's not a full LUT, which is only supported by KDE plasma p much; and the devs were very "uh some new hw is LUT capable i thiiiink buuut go use that thing lol")

lemme test on x1e80100. and if you need help upstreaming, dm me!